应用多普勒超声观测胎儿肝内门脉系统的血流改变

Observation of the Fetal Blood Flow Changes in the Liver Portal Vein System by Using Ultrasonic Doppler

目的 应用多普勒超声测出胎儿时期肝内门脉系统的血流参数。方法 应用EUB 5 65A型彩色多普勒诊断仪检测 5 0例胎儿门脉主干、门脉右支、门脉左支囊部及静脉导管和 5 0例胎儿脐静脉的平均血流速度及流量。结果 各血管血流速度的顺序是静脉导管 >脐静脉 >门脉主干及其左、右支 (P <0 .0 5 ) ,血流量的顺序是脐静脉 >门脉左支 >门脉主干>静脉导管 (P <0 .0 5 )。

Objective Blood flow parameter of the portal vein system in the liver of fetus was studied by Doppler ultrasound.Methods The mean velocity and volume of blood flow of the portal vein, the right branch of the portal vein, the cyst of the left branch of the portal vein, the vein duct and the umbilical vein of 50 fetus were examined by color Doppler ultrasound. Results The order of blood flow velocity of the blood vessels was the vein duct >the umbilical vein >the main,right,left branches of the portal vein ( P <0.05). The order of blood flow volume was the umbilical vein >the left branches of the portal vein >the main portal vein >the vein duct ( P <0.05). Conclusion The Doppler ultrasound is a good method to access the blood flow of the fetal portal vein system.